Linus Torvalds wrote:> Tell me, what does "suspend" do, and what does "freeze" (snapshot) do?> > And name *one* thing that have in common.> > I'll tell you: Nada. Zero. Zilch. Nothing.> > "Freeze" for a disk is a total no-op. There is no DMA, there is no > nothing. In contrast, "suspend" for a disk is a totally valid operation.>

Freeze is a subset of suspend, isn't it? (It might be an empty subsetin some cases.)